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Change in Pelvic Incidence Associated With Sacroiliac Joint Dysfunction: A Case Report
Eric Chun Pu Chu1, Arnold Yu Lok Wong2
1New York Chiropractic and Physiotherapy Centre, Hong Kong, China.
Journal of Medical Cases
|February 25, 2022
Summary
Sacroiliac joint (SIJ) dysfunction can cause pain and limping. This case report suggests that changes in pelvic incidence (PI) on radiographs may help diagnose SIJ dysfunction.
Area of Science:
- Orthopedics
- Radiology
- Physical Therapy
Background:
- The sacroiliac joint (SIJ) is crucial for stability, with limited motion.
- SIJ dysfunction involves abnormal SIJ movement, posing diagnostic challenges.
- Current diagnostic methods include physical maneuvers and image-guided injections.
Observation:
- A 47-year-old female presented with right buttock pain and a painful limp.
- Radiographs showed inflammatory sclerosis around the right SIJ.
- Physical examination indicated right SIJ dysfunction with positive provocation tests.
Findings:
- The patient's pain resolved and gait improved after 6 months of thoracolumbar manipulation and rehabilitation.
- Follow-up radiographs unexpectedly revealed a change in pelvic incidence (PI) angles.
- This PI change suggests potential SIJ mobility despite the joint's primary role in stability.
Implications:
- The observed PI change offers a novel possibility for diagnosing SIJ dysfunction using serial radiographs.
- This finding may enhance the understanding and diagnostic accuracy of SIJ dysfunction.
- Further research into PI changes could refine diagnostic protocols for SIJ-related conditions.
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